The simple past is formed by using only the past tense of the verb in combination with a noun or a pronoun.Originally Posted by dianne
The past perfect is formed by using the past tense form of 'to have', which is 'had', in combination with a past participle.
Here is an example: I already ate. - Of course that is the simple past.
When I woke up and looked out the window, it had already started to snow. - That, of course is the past perfect.
The past perfect is usually used to form a sentence with 2 clauses, though this isn't always the case necessarily.
If you would like, you can write some sentences using the past perfect for practice. We'll take a look at them.
What is your first language?